ASTM A335 P9 Pipe

Need Technical Assistance?

Technical Support
Material Test Certificate
Export Documentation
Bulk Quantity Supply

Product Overview

ASTM A335 P9 Pipe is an alloy steel seamless pipe designed for high-temperature and high-pressure service conditions. It contains chromium and molybdenum as major alloying elements, providing excellent resistance to oxidation, corrosion and elevated temperatures.

ASTM A335 P9 pipes are widely used in power generation, petrochemical, oil & gas, refinery and high-pressure piping applications where strength and reliable performance at elevated temperatures are required. The material offers good mechanical strength and is suitable for bending, flanging and forming operations.

OM Export India Pvt. Ltd. supplies ASTM A335 P9 alloy steel seamless pipes in different sizes, schedules, wall thicknesses and end configurations as per customer requirements and applicable standards.

Key Features

High-temperature and high-pressure service capability
Excellent resistance to oxidation and corrosion
High mechanical strength
Chromium-molybdenum alloy steel construction
Suitable for power plant and boiler applications
Suitable for petrochemical and refinery applications
Available in different schedules and wall thicknesses
Plain, beveled and threaded end options available
Single random, double random and cut lengths available
Suitable for bending, flanging and forming operations
Custom sizes available as per requirement

Product Specifications

Property	Specification
Material	Alloy Steel
Grade	ASTM A335 P9
Equivalent Grade	ASME SA335 P9
Type	Seamless Pipe
Size Range	1/2 NB to 36 NB
Schedules	SCH 40, SCH 80, SCH 160, SCH XS, SCH XXS and Custom Schedules
Wall Thickness	As per applicable standard and customer requirement
Length	Single Random, Double Random and Cut Length
Pipe Form	Round
End Type	Plain End, Beveled End, Threaded End
Manufacturing Process	Hot Rolled / Cold Drawn / Cold Rolled
Applicable Standards	ASTM A335 / ASME SA335

Dimensions & Sizes

Outside Diameter (mm)	Wall Thickness (mm)
38.1	3.2, 4.0, 6.3
42.4	3.2, 4.0
44.5	3.2, 6.3
48.3	3.2, 3.6
50.8	4.5
51.0	3.2, 3.6, 6.3
57.0	3.2, 3.6, 4.9, 6.3, 7.9
60.3	3.2, 3.6, 5.0
63.5	3.2, 3.6, 4.0, 6.3, 7.9
70.0	3.2, 3.6, 6.3
76.2	3.6, 4.0, 5.0, 6.3
82.5	4.5
88.9	3.2, 3.6, 4.0
101.6	3.6, 4.5, 6.3
114.3	3.6, 5.0
139.7	4.0, 5.0, 6.3

Chemical Composition

Element	Composition (%)
Carbon (C)	0.15 max
Manganese (Mn)	0.30 - 0.60
Phosphorus (P)	0.025 max
Sulfur (S)	0.025 max
Silicon (Si)	0.25 - 1.00
Chromium (Cr)	8.00 - 10.00
Molybdenum (Mo)	0.90 - 1.10

Mechanical Properties

Property	Minimum Requirement
Tensile Strength	415 MPa
Yield Strength	205 MPa
Elongation	30%

Standards & Specifications

ASTM A335
ASME SA335
ASTM A450
ANSI / ASME B36.10M
Applicable IBR requirements where specified

Applications

ASTM A335 P9 Pipes are used in demanding industrial applications where high temperature, pressure and mechanical strength are critical.

Power Generation Plants
Boiler and Superheater Systems
Oil & Gas Industries
Petrochemical Plants
Oil Refineries
High Pressure Piping Systems
Heat Exchanger Systems
Process Industries
Steam Piping Systems
Industrial Heating Systems

Packaging Details

Pipe ends protected as required
Bundles securely packed for transportation
Plastic or suitable protective wrapping available
Wooden packing available on request
Suitable marking and identification provided
Custom packaging available as per customer requirement

Testing & Certification

ASTM A335 P9 Pipes can be supplied with relevant inspection and testing documentation as required by the customer.

Mill Test Certificate (MTC)
Chemical Composition Test Report
Mechanical Test Report
Dimensional Inspection Report
Hydrostatic / Non-Destructive Testing as applicable
EN 10204 3.1 Certificate on request
IBR documentation where applicable

Frequently Asked Questions

What is ASTM A335 P9 Pipe?

ASTM A335 P9 is a chromium-molybdenum alloy steel seamless pipe grade designed primarily for high-temperature and high-pressure applications.

Where are ASTM A335 P9 Pipes used?

These pipes are commonly used in power generation, boilers, refineries, petrochemical plants, oil and gas facilities and high-pressure piping systems.

What standard does ASTM A335 P9 Pipe follow?

The pipe is manufactured according to ASTM A335 and its ASME equivalent SA335 requirements.

Are different sizes and schedules available?

Yes. ASTM A335 P9 Pipes are available in different nominal sizes, schedules, wall thicknesses and lengths as per requirement.

Can ASTM A335 P9 Pipe be supplied with testing certificates?

Yes. Mill Test Certificates and applicable inspection and testing documents can be supplied as required.